Respuesta :
Answer:
f(-1)=2x3-3x2+7.
Step-by-step explanation:
Step 1 :
Equation at the end of step 1 :
-f - (((2 • (x3)) - 3x2) + 7) = 0
Step 2 :
Equation at the end of step 2 :
-f - ((2x3 - 3x2) + 7) = 0
Pull out like factors :
-f - 2x3 + 3x2 - 7 =
-1 • (f + 2x3 - 3x2 + 7)
f + 2x3 - 3x2 + 7 is not a perfect cube
-f - 2x3 + 3x2 - 7 = 0
